| 摘要 |
A containment casing 1 is provided in which tubular composite layers 2, 3 are arranged in an angular staggered relationship to minimise overlap between the interstitial spacing between tubes in each respective layer 2, 3 . In such circumstances, with a continuous planar layer 4, 5 on one or both sides, operational integrity is maintained with a lightweight containment casing 1 in comparison with prior arrangements but retaining resistance to fragment penetration.
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